agenttesla | 25be2708fd976b28b33b1ada6437db6460c6e4f87dd53f40f2b8cb11ab2a8252

General

Target

fb0a1d386c36a73b63fa93e78af546c0N.exe
Size

1.1MB
MD5

fb0a1d386c36a73b63fa93e78af546c0
SHA1

77bd6f5c0391692bd61150ae13b385389e279b85
SHA256

25be2708fd976b28b33b1ada6437db6460c6e4f87dd53f40f2b8cb11ab2a8252
SHA512

d2b7ee6545a4bc6f8b2e387d9d1b0df345181d765d2608172301f053b92430948880af332ebc59ebbedd7a10fca985a8bb209e06f6f04df688d25f1aa40d8872
SSDEEP

24576:nqDEvCTbMWu7rQYlBQcBiT6rprG8aC3/bBZEuivGph:nTvC/MTQYxsWR7aC3zBnp

Score

10^/10

agenttesla collection credential_access discovery keylogger persistence spyware stealer trojan

Malware Config

Extracted

Family

agenttesla

Credentials

Protocol: smtp
Host:
mail.tuspartners.mx
Port:
587
Username:
[email protected]
Password:
K3Vh1Nr#
Email To:
[email protected]

Signatures

AgentTesla
Agent Tesla is a remote access tool (RAT) written in visual basic.
keylogger trojan stealer spyware agenttesla
Credentials from Password Stores: Credentials from Web Browsers 1 TTPs
Malicious Access or copy of Web Browser Credential store.
credential_access stealer

Credentials from Web Browsers
T1555.003

Accesses Microsoft Outlook profiles 1 TTPs 3 IoCs

collection

Email Collection

T1114

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Office\15.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe
Key opened	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

Adds Run key to start application 2 TTPs 1 IoCs

persistence

Registry Run Keys / Startup Folder

T1547.001

Modify Registry

T1112

description	ioc	Process
Set value (str)	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\SOFTWARE\Microsoft\Windows\CurrentVersion\Run\rWvbZS = "C:\\Users\\Admin\\AppData\\Roaming\\rWvbZS\\rWvbZS.exe"	RegSvcs.exe

Suspicious use of SetThreadContext 1 IoCs

description	pid	Process	procid_target
PID 4120 set thread context of 4572	4120	fb0a1d386c36a73b63fa93e78af546c0N.exe	88

System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

discovery

System Language Discovery

T1614.001

description	ioc	Process
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	fb0a1d386c36a73b63fa93e78af546c0N.exe
Key opened	\REGISTRY\MACHINE\SYSTEM\ControlSet001\Control\NLS\Language	RegSvcs.exe

Suspicious behavior: EnumeratesProcesses 2 IoCs

pid	Process
4572	RegSvcs.exe
4572	RegSvcs.exe

Suspicious behavior: MapViewOfSection 2 IoCs

pid	Process
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe

Suspicious use of AdjustPrivilegeToken 1 IoCs

description	pid	Process
Token: SeDebugPrivilege	4572	RegSvcs.exe

Suspicious use of FindShellTrayWindow 7 IoCs

pid	Process
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe

Suspicious use of SendNotifyMessage 7 IoCs

pid	Process
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe
4120	fb0a1d386c36a73b63fa93e78af546c0N.exe

Suspicious use of WriteProcessMemory 4 IoCs

description	pid	Process	procid_target
PID 4120 wrote to memory of 4572	4120	fb0a1d386c36a73b63fa93e78af546c0N.exe	88
PID 4120 wrote to memory of 4572	4120	fb0a1d386c36a73b63fa93e78af546c0N.exe	88
PID 4120 wrote to memory of 4572	4120	fb0a1d386c36a73b63fa93e78af546c0N.exe	88
PID 4120 wrote to memory of 4572	4120	fb0a1d386c36a73b63fa93e78af546c0N.exe	88

outlook_office_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Office\16.0\Outlook\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

outlook_win_path 1 IoCs

description	ioc	Process
Key opened	\REGISTRY\USER\S-1-5-21-4182098368-2521458979-3782681353-1000\Software\Microsoft\Windows NT\CurrentVersion\Windows Messaging Subsystem\Profiles\Outlook\9375CFF0413111d3B88A00104B2A6676	RegSvcs.exe

C:\Users\Admin\AppData\Local\Temp\fb0a1d386c36a73b63fa93e78af546c0N.exe
"C:\Users\Admin\AppData\Local\Temp\fb0a1d386c36a73b63fa93e78af546c0N.exe"
1⤵
- Suspicious use of SetThreadContext
- System Location Discovery: System Language Discovery
- Suspicious behavior: MapViewOfSection
- Suspicious use of FindShellTrayWindow
- Suspicious use of SendNotifyMessage
- Suspicious use of WriteProcessMemory
PID:4120
- C:\Windows\Microsoft.NET\Framework\v4.0.30319\RegSvcs.exe
  "C:\Users\Admin\AppData\Local\Temp\fb0a1d386c36a73b63fa93e78af546c0N.exe"
  2⤵
  - Accesses Microsoft Outlook profiles
  - Adds Run key to start application
  - System Location Discovery: System Language Discovery
  - Suspicious behavior: EnumeratesProcesses
  - Suspicious use of AdjustPrivilegeToken
  - outlook_office_path
  - outlook_win_path
  PID:4572

Network

MITRE ATT&CK Enterprise v15

Reconnaissance

Resource Development

Initial Access

Execution

Persistence

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Privilege Escalation

Boot or Logon Autostart Execution

1

T1547

Registry Run Keys / Startup Folder

1

T1547.001

Defense Evasion

Modify Registry

1

T1112

Credential Access

Credentials from Password Stores

1

T1555

Credentials from Web Browsers

1

T1555.003

Discovery

System Location Discovery

1

T1614

System Language Discovery

1

T1614.001

Lateral Movement

Collection

Email Collection

1

T1114

Command and Control

Exfiltration

Impact

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Downloads

memory/4120-11-0x0000000004540000-0x0000000004544000-memory.dmp

Filesize
16KB

Download
memory/4572-12-0x0000000000340000-0x0000000000382000-memory.dmp

Filesize
264KB

Download
memory/4572-13-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

Filesize
4KB

Download
memory/4572-14-0x00000000052B0000-0x0000000005854000-memory.dmp

Filesize
5.6MB

Download
memory/4572-15-0x0000000004E00000-0x0000000004E66000-memory.dmp

Filesize
408KB

Download
memory/4572-16-0x0000000073EF0000-0x00000000746A0000-memory.dmp

Filesize
7.7MB

Download
memory/4572-18-0x0000000005BB0000-0x0000000005C00000-memory.dmp

Filesize
320KB

Download
memory/4572-19-0x0000000005CA0000-0x0000000005D32000-memory.dmp

Filesize
584KB

Download
memory/4572-20-0x0000000005C20000-0x0000000005C2A000-memory.dmp

Filesize
40KB

Download
memory/4572-21-0x0000000073EFE000-0x0000000073EFF000-memory.dmp

Filesize
4KB

Download
memory/4572-22-0x0000000073EF0000-0x00000000746A0000-memory.dmp

Filesize
7.7MB

Download

Analysis

Sharing

General

Malware Config

Extracted

Signatures

Processes

Network

MITRE ATT&CK Enterprise v15

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Downloads